package com.jlu.yygh.service.impl;

import com.alibaba.fastjson.JSONObject;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.jlu.yygh.common.exception.CustomException;
import com.jlu.yygh.common.result.ResultCodeEnum;
import com.jlu.yygh.mapper.ScheduleMapper;
import com.jlu.yygh.model.hosp.BookingRule;
import com.jlu.yygh.model.hosp.Department;
import com.jlu.yygh.model.hosp.Hospital;
import com.jlu.yygh.model.hosp.Schedule;
import com.jlu.yygh.repository.ScheduleRepository;
import com.jlu.yygh.service.DepartmentService;
import com.jlu.yygh.service.HospitalService;
import com.jlu.yygh.service.ScheduleService;
import com.jlu.yygh.vo.hosp.BookingScheduleRuleVo;
import com.jlu.yygh.vo.hosp.ScheduleOrderVo;
import com.jlu.yygh.vo.hosp.ScheduleQueryVo;
import org.joda.time.DateTime;
import org.joda.time.DateTimeConstants;
import org.joda.time.format.DateTimeFormat;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.*;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.aggregation.Aggregation;
import org.springframework.data.mongodb.core.aggregation.AggregationResults;
import org.springframework.data.mongodb.core.query.Criteria;
import org.springframework.stereotype.Service;
import org.springframework.util.CollectionUtils;

import java.util.*;
import java.util.stream.Collectors;

@Service
public class ScheduleServiceImpl implements ScheduleService {

  @Autowired
  private ScheduleRepository scheduleRepository;

  @Autowired
  private MongoTemplate mongoTemplate;

  @Autowired
  private HospitalService hospitalService;

  @Autowired
  private DepartmentService departmentService;

  @Override
  public void remove(String hoscode, String hosScheduleId) {
    Schedule schedule = scheduleRepository.getScheduleByHoscodeAndHosScheduleId(hoscode, hosScheduleId);
    if(null != schedule) {
      scheduleRepository.deleteById(schedule.getId());
    }
  }

  @Override
  public Page<Schedule> selectPage(Integer page, Integer limit, ScheduleQueryVo scheduleQueryVo) {
    //0为第一页
    Pageable pageable = PageRequest.of(page-1, limit);

    Schedule schedule = new Schedule();
    BeanUtils.copyProperties(scheduleQueryVo, schedule);
    schedule.setIsDeleted(0);

    //创建匹配器，即如何使用查询条件
    ExampleMatcher matcher = ExampleMatcher.matching() //构建对象
            .withStringMatcher(ExampleMatcher.StringMatcher.CONTAINING) //改变默认字符串匹配方式：模糊查询
            .withIgnoreCase(true); //改变默认大小写忽略方式：忽略大小写

    //创建实例
    Example<Schedule> example = Example.of(schedule, matcher);

    Page<Schedule> all = scheduleRepository.findAll(example, pageable);
    return all;
  }

  @Override
  public void save(Map<String, Object> paramMap) {

    Schedule schedule = JSONObject.parseObject(JSONObject.toJSONString(paramMap), Schedule.class);
    Schedule targetSchedule = scheduleRepository.getScheduleByHoscodeAndHosScheduleId(schedule.getHoscode(), schedule.getHosScheduleId());
    if(null != targetSchedule) {
//值copy不为null的值，该方法为自定义方法
//      BeanUtils.copyBean(schedule, targetSchedule, Schedule.class);
      scheduleRepository.save(targetSchedule);
    } else {
      schedule.setCreateTime(new Date());
      schedule.setUpdateTime(new Date());
      schedule.setIsDeleted(0);
      scheduleRepository.save(schedule);
    }
  }

  //根据医院编号 和 科室编号 ，查询排班规则数据
  @Override
  public Map<String, Object> getRuleSchedule(long page, long limit, String hoscode, String depcode) {

    //1 根据医院编号 和 科室编号 查询
    Criteria criteria = Criteria.where("hoscode").is(hoscode).and("depcode").is(depcode);

    //2 根据工作日workDate期进行分组
    Aggregation agg = Aggregation.newAggregation(
            Aggregation.match(criteria),
            Aggregation.group("workDate").first("workDate").as("workDate")
                    //3 统计号源数量
                    .count().as("docCount")
                    .sum("reservedNumber").as("reservedNumber")
                    .sum("availableNumber").as("availableNumber"),
            //排序
            Aggregation.sort(Sort.Direction.ASC,"workDate"),
            //4 实现分页
            Aggregation.skip((page-1)*limit),
            Aggregation.limit(limit)
    );

    //调用方法，最终执行
    AggregationResults<BookingScheduleRuleVo> bookingScheduleRuleVos = mongoTemplate.aggregate(agg, Schedule.class, BookingScheduleRuleVo.class);

    List<BookingScheduleRuleVo> bookingScheduleRuleVoList = bookingScheduleRuleVos.getMappedResults();

    //分组查询的总记录数
    Aggregation totalAgg = Aggregation.newAggregation(
            Aggregation.match(criteria),
            Aggregation.group("workDate")
    );
    AggregationResults<BookingScheduleRuleVo> totalAggResults =
            mongoTemplate.aggregate(totalAgg,
                    Schedule.class, BookingScheduleRuleVo.class);
    int total = totalAggResults.getMappedResults().size();

    //把日期对应星期获取
    for(BookingScheduleRuleVo bookingScheduleRuleVo:bookingScheduleRuleVoList) {
      Date workDate = bookingScheduleRuleVo.getWorkDate();
      String dayOfWeek = this.getDayOfWeek(new DateTime(workDate));
      bookingScheduleRuleVo.setDayOfWeek(dayOfWeek);
    }

    //设置最终数据，进行返回
    Map<String, Object> result = new HashMap<>();
    //获取医院名称
    String hosName = hospitalService.getName(hoscode);

    result.put("bookingScheduleRuleList",bookingScheduleRuleVoList);
    result.put("total",total);

    //其他基础数据
    Map<String, String> baseMap = new HashMap<>();
    baseMap.put("hosname",hosName);
    result.put("baseMap",baseMap);


    return result;
  }

  /**
   * 根据日期获取周几数据
   * @param dateTime
   * @return
   */
  private String getDayOfWeek(DateTime dateTime) {
    String dayOfWeek = "";
    switch (dateTime.getDayOfWeek()) {
      case DateTimeConstants.SUNDAY:
        dayOfWeek = "周日";
        break;
      case DateTimeConstants.MONDAY:
        dayOfWeek = "周一";
        break;
      case DateTimeConstants.TUESDAY:
        dayOfWeek = "周二";
        break;
      case DateTimeConstants.WEDNESDAY:
        dayOfWeek = "周三";
        break;
      case DateTimeConstants.THURSDAY:
        dayOfWeek = "周四";
        break;
      case DateTimeConstants.FRIDAY:
        dayOfWeek = "周五";
        break;
      case DateTimeConstants.SATURDAY:
        dayOfWeek = "周六";
      default:
        break;
    }
    return dayOfWeek;
  }

  //根据医院编号 、科室编号和工作日期，查询排班详细信息
  @Override
  public List<Schedule> getDetailSchedule(String hoscode, String depcode, String workDate) {

    //根据参数查询mongodb
    List<Schedule> scheduleList = scheduleRepository.findScheduleByHoscodeAndDepcodeAndWorkDate(hoscode,depcode,new DateTime(workDate).toDate());

    //把得到list集合遍历，向设置其他值：医院名称、科室名称、日期对应星期
    scheduleList.stream().forEach(item->{
      this.packageSchedule(item);
    });

    return scheduleList;
  }

  //封装排班详情其他值 医院名称、科室名称、日期对应星期
  private Schedule packageSchedule(Schedule schedule) {
    //设置医院名称
    schedule.getParam().put("hosname",hospitalService.getName(schedule.getHoscode()));
    //设置科室名称
    schedule.getParam().put("depname",departmentService.getDepName(schedule.getHoscode(),schedule.getDepcode()));
    //设置日期对应星期
    schedule.getParam().put("dayOfWeek",this.getDayOfWeek(new DateTime(schedule.getWorkDate())));
    return schedule;
  }

  @Override
  public Map<String, Object> getBookingScheduleRule(int page, int limit, String hoscode, String depcode) {
    Map<String, Object> result = new HashMap<>();

    Hospital hospital = hospitalService.getByHoscode(hoscode);

    if (hospital == null){
      throw new CustomException(ResultCodeEnum.DATA_ERROR);
    }

    BookingRule bookingRule = hospital.getBookingRule();

    //获取可预约日期分页数据
    IPage<Date> iPage = this.getListDate(page, limit, bookingRule);

    //当前页可预约日期
    List<Date> dateList = iPage.getRecords();
    //获取可预约日期科室剩余预约数
    Criteria criteria = Criteria.where("hoscode").is(hoscode).and("depcode").is(depcode).and("workDate").in(dateList);
    Aggregation agg = Aggregation.newAggregation(
            Aggregation.match(criteria),
            Aggregation.group("workDate")//分组字段
                    .first("workDate").as("workDate")
                    .count().as("docCount")
                    .sum("availableNumber").as("availableNumber")
                    .sum("reservedNumber").as("reservedNumber")
    );
    AggregationResults<BookingScheduleRuleVo> aggregationResults = mongoTemplate.aggregate(agg, Schedule.class, BookingScheduleRuleVo.class);
    List<BookingScheduleRuleVo> scheduleVoList = aggregationResults.getMappedResults();
    //获取科室剩余预约数

    //合并数据 将统计数据ScheduleVo根据“安排日期”合并到BookingRuleVo
    Map<Date, BookingScheduleRuleVo> scheduleVoMap = new HashMap<>();
    if(!CollectionUtils.isEmpty(scheduleVoList)) {
      scheduleVoMap = scheduleVoList.stream().collect(Collectors.toMap(BookingScheduleRuleVo::getWorkDate, BookingScheduleRuleVo -> BookingScheduleRuleVo));
    }
    //获取可预约排班规则
    List<BookingScheduleRuleVo> bookingScheduleRuleVoList = new ArrayList<>();
    for(int i=0; i < dateList.size(); i++) {
      Date date = dateList.get(i);

      BookingScheduleRuleVo bookingScheduleRuleVo = scheduleVoMap.get(date);
      if(null == bookingScheduleRuleVo) { // 说明当天没有排班医生
        bookingScheduleRuleVo = new BookingScheduleRuleVo();
        //就诊医生人数
        bookingScheduleRuleVo.setDocCount(0);
        //科室剩余预约数  -1表示无号
        bookingScheduleRuleVo.setAvailableNumber(-1);
      }
      bookingScheduleRuleVo.setWorkDate(date);
      bookingScheduleRuleVo.setWorkDateMd(date);
      //计算当前预约日期为周几
      String dayOfWeek = this.getDayOfWeek(new DateTime(date));
      bookingScheduleRuleVo.setDayOfWeek(dayOfWeek);

      //最后一页最后一条记录为即将预约   状态 0：正常 1：即将放号 -1：当天已停止挂号
      if(i == dateList.size()-1 && page == iPage.getPages()) {
        bookingScheduleRuleVo.setStatus(1);
      } else {
        bookingScheduleRuleVo.setStatus(0);
      }
      //当天预约如果过了停号时间， 不能预约
      if(i == 0 && page == 1) {
        DateTime stopTime = this.getDateTime(new Date(), bookingRule.getStopTime());
        if(stopTime.isBeforeNow()) {
          //停止预约
          bookingScheduleRuleVo.setStatus(-1);
        }
      }
      bookingScheduleRuleVoList.add(bookingScheduleRuleVo);
    }

    //可预约日期规则数据
    result.put("bookingScheduleList", bookingScheduleRuleVoList);
    result.put("total", iPage.getTotal());
    //其他基础数据
    Map<String, String> baseMap = new HashMap<>();
    //医院名称
    baseMap.put("hosname", hospitalService.getName(hoscode));
    //科室
    Department department =departmentService.getDepartment(hoscode, depcode);
    //大科室名称
    baseMap.put("bigname", department.getBigname());
    //科室名称
    baseMap.put("depname", department.getDepname());
    //月
    baseMap.put("workDateString", new DateTime().toString("yyyy年MM月"));
    //放号时间
    baseMap.put("releaseTime", bookingRule.getReleaseTime());
    //停号时间
    baseMap.put("stopTime", bookingRule.getStopTime());
    result.put("baseMap", baseMap);
    return result;
  }


  /**
   * 获取可预约日期分页数据
   */
  private IPage<Date> getListDate(int page, int limit, BookingRule bookingRule) {

//    当天放号时间
    DateTime releaseTime = this.getDateTime(new Date(), bookingRule.getReleaseTime());
//    预约周期
    int cycle = bookingRule.getCycle();
//    如果当天放号时间已过，则预约周期后一天为即将放号时间，周期加1
    if(releaseTime.isBeforeNow()) {
      cycle = cycle + 1;
    }
//    可预约所有日期，最后一天显示即将放号倒计时
    List<Date> dateList = new ArrayList<>();
    for (int i = 0; i < cycle; i++) {
//    计算当前预约日期
      DateTime curDateTime = new DateTime().plusDays(i);
      String dateString = curDateTime.toString("yyyy-MM-dd");
      dateList.add(new DateTime(dateString).toDate());
    }
//    日期分页，由于预约周期不一样，页面一排最多显示7天数据，多了就要分页显示
    List<Date> pageDateList = new ArrayList<>();
    int start = (page-1)*limit;
    int end = (page-1)*limit+limit;
    if(end >dateList.size()) {
      end = dateList.size();
    }
    for (int i = start; i < end; i++) {
      pageDateList.add(dateList.get(i));
    }
    IPage<Date> iPage = new com.baomidou.mybatisplus.extension.plugins.pagination.Page(page, 7, dateList.size());
    iPage.setRecords(pageDateList);
    return iPage;
  }

  /**
   * 将Date日期（yyyy-MM-dd HH:mm）转换为DateTime
   */
  private DateTime getDateTime(Date date, String timeString) {
    String dateTimeString = new DateTime(date).toString("yyyy-MM-dd") + " "+ timeString;
    DateTime dateTime = DateTimeFormat.forPattern("yyyy-MM-dd HH:mm").parseDateTime(dateTimeString);
    return dateTime;
  }

  @Override
  public Schedule getById(String id) {

    Schedule schedule = scheduleRepository.findById(id).get();
    return this.packageSchedule(schedule);
  }

//  获取排班下单信息与规则信息
  @Override
  public ScheduleOrderVo getScheduleOrderVo(String scheduleId) {

    ScheduleOrderVo scheduleOrderVo = new ScheduleOrderVo();
    //排班信息
    Schedule schedule = this.getById(scheduleId);
    if(null == schedule) {
      throw new CustomException(ResultCodeEnum.PARAM_ERROR);
    }

    //获取预约规则信息
    Hospital hospital = hospitalService.getByHoscode(schedule.getHoscode());
    if(null == hospital) {
      throw new CustomException(ResultCodeEnum.DATA_ERROR);
    }
    BookingRule bookingRule = hospital.getBookingRule();
    if(null == bookingRule) {
      throw new CustomException(ResultCodeEnum.PARAM_ERROR);
    }

//    将数据设置到scheduleOrderVo中
    scheduleOrderVo.setHoscode(schedule.getHoscode());
    scheduleOrderVo.setHosname(hospitalService.getName(schedule.getHoscode()));
    scheduleOrderVo.setDepcode(schedule.getDepcode());
    scheduleOrderVo.setDepname(departmentService.getDepName(schedule.getHoscode(), schedule.getDepcode()));
    scheduleOrderVo.setHosScheduleId(schedule.getHosScheduleId());
    scheduleOrderVo.setAvailableNumber(schedule.getAvailableNumber());
    scheduleOrderVo.setTitle(schedule.getTitle());
    scheduleOrderVo.setReserveDate(schedule.getWorkDate());
    scheduleOrderVo.setReserveTime(schedule.getWorkTime());
    scheduleOrderVo.setAmount(schedule.getAmount());

    //退号截止天数（如：就诊前一天为-1，当天为0）
    int quitDay = bookingRule.getQuitDay();
    DateTime quitTime = this.getDateTime(new DateTime(schedule.getWorkDate()).plusDays(quitDay).toDate(), bookingRule.getQuitTime());
    scheduleOrderVo.setQuitTime(quitTime.toDate());

    //预约开始时间
    DateTime startTime = this.getDateTime(new Date(), bookingRule.getReleaseTime());
    scheduleOrderVo.setStartTime(startTime.toDate());

    //预约截止时间
    DateTime endTime = this.getDateTime(new DateTime().plusDays(bookingRule.getCycle()).toDate(), bookingRule.getStopTime());
    scheduleOrderVo.setEndTime(endTime.toDate());

    //当天停止挂号时间
    DateTime stopTime = this.getDateTime(new Date(), bookingRule.getStopTime());
    scheduleOrderVo.setStartTime(startTime.toDate());
    return scheduleOrderVo;
  }

  @Override
  public void update(Schedule schedule) {
    schedule.setUpdateTime(new Date());
    //主键一致就是更新
    scheduleRepository.save(schedule);
    System.out.println("更新了");
  }
}


